<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>邮件通知</title>
</head>
<body>
<h3>您好：${username}</h3>
<p>您的验证码是：<b>${code}</b></p>
<p>请在 ${timeout} 分钟内完成验证。</p>
</body>
</html>
